Background: Acute appendicitis neither suspected nor diagnosed could develop a perforation or otherwise it would take to removing of a normal appendix. Objectives: Utilization of a clinical score system for aided diagnosis of this pathology and can reduce a negative appendicitis. Setting: Central Guard Service and General Surgery Service room 3/5 “Pablo Luis Mirizzi”. National Clinical Hospital. Córdoba. Argentina. Design: Prospective and protocoled study. Material and Methods: It comprises 1119 patients studied between August 2005 and December 2024. Of these, 588 were male and 531 female, with an average age of 25.3 years. All patients underwent the Alvarado Score at admission surgical exploration was decided in 1061 patients (94.80%). Of the remaining 58 (5.18%), they were excluded due to another pathology. The diagnosis of acute appendicitis was confirmed by surgical findings and pathological anatomy. Results: Operative findings found that 962 patients (90.60 %), had acute appendicitis. There was no postoperative mortality. In relation to morbidity, there were 2.2% of medical complications and 16.30% of surgical complications. The pathological report showed a normal cecal appendix in 99 patients. Therefore, the incidence of negative appendectomies was 9.3%. Conclusions: The utilization of score related to the surgical and anatomo pathology finding confirmed it was appreciable from 6 points to acute appendicitis diagnosis.